Only tip I can recommend off top of my head is to fabricate some kind of "anvil" for removing the butterfly screws, along with a PB soak and an impact driver (the manual kind you hit with a hammer).
By anvil I mean something like a backup block of wood or similar to absorb the blow so you don't bend the shaft holding the butterfly discs. Same procedure if you're removing the float hinge pins from the cast aluminum "towers" they're mounted in. They are fragile. If you break one, you'll need to replace the whole carb body. On Feb 7, 11:56 pm, Kurt Nolte <[email protected]> wrote: > So, I have decided to start a long and, knowing this group, undoubtedly > rambling e-mail thread beginning with, perambulating away from and > meandering at often tangential paths to, a set of CB650SC carburetors I > have just begun rebuilding. > > Now, I have no complete, assembled pre-cleaned carburetor rack pictures. > The rack is apart, and all the screws are in a baggie labelled "Carb rack." > I have a SINGLE carburetor soaking in a nice aluminum pot full of a 50/50 > mix of Pine-Sol and water, in an ambient temperature room. Let's call it an > average temp of ~55F. They've been in there since 6PM Monday. Today there > was notable improvement! > > The one carburetor I picked because it is the grodiest, and the slide is > stuck. > > All the jets are /gross/. I spotted some pitting, and definitely build-up. > I shall replace them all, what size would The Collective recommend for a > good balance of rideability and economy with a stock '83 4-into-2 exhaust? > > I also plan to look into replacement diaphragms from JBM Industries. They > have a 71mm diaphragm listed, and the groove They call for measuring is > within .25mm of that as measured with a pair of dial calipers. Given that > they say you can measure even with a ruler... I'm going to say that .25mm > tolerance is probably enough, and order a set of diaphragms. There WILL be > pictures of this. > > Are there any tips for removing the screws holding the carb butterflies > onto the shaft? I would like to pull the butterflies so I can make sure to > get the inside of the carb throats good and clean, as well as clean the > shafts and make certain everything is in good order. > > That's all from me for now, folks. > > -Kurt -- You received this message because you are subscribed to the Google Groups "Nighthawk Motorcycle Lovers!" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/nighthawk_lovers?hl=en.
